python 连接presto报错超时怎么办

报错：
Max retries exceeded with url: /v1/statement (Caused by ConnectTimeoutError(<urllib3.connection.HTTPConnection object at 0x12a023dc0>, 'Connection to 172.16.189.65 timed out. (connect timeout=30.0)'))

这个是连接失败了，看看服务器是不是设了访问限制，端口是否允许外网访问，防火墙设置等等